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Postoperative PainNCT02660918

Decreasing Postoperative Pain Following Endometrial Ablation

A study testing Bupivacaine and Normal Saline in people with Postoperative Pain, run by Christiana Care Health Services at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

To determine whether paracervical injection of long acting local anesthesia decreases postoperative pain following endometrial ablation under general anesthesia. Read more about this study

Who is it for?
Ages 30 to 55 years, women onlyHealthy volunteers can take part
Conditions the study is for
Postoperative Pain
What is being tested?
Bupivacaine and Normal Saline
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
84 participants
Where
1 siteUnited States
Study dates
Apr 2016to Mar 2017
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 30 to 55 years
  • Women only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Premenopausal women
  • English as primary language
  • undergoing outpatient endometrial ablation at the Christiana Hospital Surgical Center
  • Indication of menorrhagia
  • Inication of abnormal uterine bleeding
  • Indication of thickened endometrium.

Who cannot join

  • Known malignancy
  • weight less than 50 Kg
  • amide allergy
  • history of chronic pain
  • cardiac arrhythmia
  • dilaudid/codeine allergy
Show all 11Show fewer
  • history of opioid use
  • inability to take opioids by mouth
  • uterine anomaly
  • previous endometrial ablation
  • primary language other than English.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Christiana Care Health System

    Newark, Delaware, 19713

Other trials in United States

About this study

Official title: Decreasing Postoperative Pain Following Endometrial Ablation: A Randomized Controlled Trial

To determine whether paracervical injection of long acting local anesthesia decreases postoperative pain following endometrial ablation under general anesthesia.

Read the detailed description

Destruction of the endometrial lining to control bothersome uterine bleeding has been implemented since 1937. Currently there are various different 'second generation' energy sources to avert such bleeding, five of which are now approved in the United States. These 5 second generation devices include: Thermachoice/Cavaterm, which use high temperature fluid within a balloon; Microsulis, which applies microwaves; Novasure, which uses bipolar energy; Hydrothermablator, which uses free fluid at high temperatures; ELITT, which uses laser thermotherapy; and HerOption, which uses cryoablation. Patient selection for endometrial ablation is crucial, as it is intended for premenopausal women with normal uterine cavities and no desire for future fertility that are affected by heavy menstrual bleeding. Since the introduction of the initial 'second generation' device in 1997 these modalities have overtaken the industry mostly due to their ease of use and shorter operative times. Regardless, a Cochrane review finds insufficient evidence to prove superiority of these newer modalities over the traditional 'gold standard' resectoscopic technique.

Endometrial ablation has been demonstrated in a variety of settings including outpatient surgical centers as well as physician's offices. Evidence suggests that microwave endometrial ablation under local anesthesia is a safe and acceptable practice. Very often, when endometrial ablation is performed as an outpatient procedure, patients are pre-medicated and then receive a paracervical injection of local anesthesia to control pain intraoperatively. When endometrial ablations are performed as an outpatient procedure through a surgical center, a variety of anesthesia techniques are employed depending on the infrastructure and human and institutional resources available. These techniques may vary from conscious sedation to general anesthesia, all of which have been proven to be acceptable methods.

In this center endometrial ablations are performed as an outpatient procedure under general anesthesia with a variety of induction techniques and intraoperative pain management practices. According to physician preference, patients may receive an additional paracervical injection of local anesthetic before the procedure, immediately after, or not at all. To date, there are no studies evaluating the efficacy of local anesthetic in addition to general anesthesia for patients receiving endometrial ablation to guide physician practice. The purpose of this study is to evaluate the efficacy of local anesthetic, in addition to general anesthesia, in our large, community-based patient population, in meaningfully decreasing postoperative pain.

Being tested
Bupivacaine, Normal Saline
Medical subject headings
Pain, Postoperative

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • BupivacaineDrug

    Also called Marcaine, Sensorcaine

    Paracervical injection of 20 mL 0.25% Bupivacaine at the completion of the procedure

  • Normal SalineOther

    Equal volume injection of normal saline with the same paracervical technique

Study groups in NCT02660918
Study groupRoleWhat they receive
TreatmentExperimentalWomen undergoing endometrial ablation that meet the eligibility criterial will receive a standardized paracervical injection of Bupivacaine 20 mL 0.25% at the completion of the procedure.
Receives: Drug: Bupivacaine
ControlPlacebo comparatorWomen undergoing endometrial ablation that meet the eligibility criterial will receive an equal volume standardized paracervical injection of Normal Saline at the completion of the procedure.
Receives: Other: Normal Saline

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Postoperative Pain Score

    Pain will be assessed using a 10 point visual analog scale. On the scale 0 represented no pain and 10 represented the highest pain level. Eligibility for analgesia was available for patients who reported pain higher than 5 out of 10 on the scale.

    Pain levels were assessed by trained nursing staff blinded to the study. Lower numbers on the 10 point scale represented a positive outcome.

    Patients

    Measured: Immediate postoperatively through 8 hours post operation.

  2. Intraoperative Total Blood Loss

    Amount of operative blood lost measured in milliliters

    Measured: Intraoperative

  3. Remaining Tylenol Tablets With Codeine Not Taken at the End of Day 1 Following Discharge

    All patients were given 10 tablets of Tylenol with codeine upon discharge for pain. This Outcome measure details the remaining number of tablets after day 1.

    Measured: Postoperative

Secondary outcomes (6)
  1. Occurrence of Intraoperative Complication

    This represents any unanticipated complication related to the endometrial ablation.

    Measured: During Surgery

  2. Postoperative Complication

    Any unanticipated complication related to the endometrial ablation.

    Measured: 1 Day Postoperative

  3. Postoperative Opioid Administered Following the Procedure But Prior to Discharge.

    Narcotic medications administered in the recovery area before the patient was discharged from the Surgicenter.

    Measured: Predischarge from hospital

  4. Postoperative Toradol

    Data was collected on whether or not the patient received Toradol following the endometrial ablation. Toradol is a non-narcotic pain medication.

    Measured: Postoperative

  5. Postoperative Anti-emetic

    Data was collected on any nausea medicine administered following the endometrial ablation.

    Measured: Postoperative

  6. Time Between Recovery Initiation and Discharge

    Time between arrival to the recovery room after surgery and discharge to home

    Measured: hours between recovery initiation and discharge

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted21 Jan 2016 (estimated)
  2. Study startApr 2016
  3. Primary completionMar 2017
  4. Study completionMar 2017

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Participant
Enrolment
84 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02660918
Sponsor's protocol ID
35179
Status last verified
Aug 2019
First submitted
19 Jan 2016
Last updated
28 Aug 2019
Data monitoring committee
No
Individual data sharing
No

Publications

  • Fergusson RJ, Lethaby A, Shepperd S, Farquhar C. Endometrial resection and ablation versus hysterectomy for heavy menstrual bleeding. Cochrane Database Syst Rev. 2013 Nov 29;(11):CD000329. doi: 10.1002/14651858.CD000329.pub2.

    PubMed 24288154
  • Glasser MH, Heinlein PK, Hung YY. Office endometrial ablation with local anesthesia using the HydroThermAblator system: Comparison of outcomes in patients with submucous myomas with those with normal cavities in 246 cases performed over 5(1/2) years. J Minim Invasive Gynecol. 2009 Nov-Dec;16(6):700-7. doi: 10.1016/j.jmig.2009.06.023.

    PubMed 19896596
  • Wallage S, Cooper KG, Graham WJ, Parkin DE. A randomised trial comparing local versus general anaesthesia for microwave endometrial ablation. BJOG. 2003 Sep;110(9):799-807.

    PubMed 14511961

Questions about this trial

What is this clinical trial studying?

A study testing Bupivacaine and Normal Saline in people with Postoperative Pain, run by Christiana Care Health Services at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 11 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 28 Aug 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 28 Aug 2019). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Postoperative Pain Score (time frame: Immediate postoperatively through 8 hours post operation.). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02660918, which also lists 3 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 28 Aug 2019.

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